William porter



W. PORTER.

Lamp.

No. 67,070. Patented July 23, 1867.

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WILLIAM PORTER, OF BELLEVILLETOWNSHIP, NEW JERSEY.

Lea; Patent No. 67,076, dated July 23,1867.

IMPROVEMENT IN LAMPS.

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TO ALL when 11' MAY CONCERN:

Be it known'that 1, WILLIAM PORTER, of the township of.Belleville, in the countyof Essex, in the'Stato of New Jersey, have invented certain; new and useful Improvements in Lamps burning oils or other fluids; and do hereby declare that the following is a full and exact description thereof, which is prepared with a view to theobtaining of Letters Patent therefor. The accompanying drawings form a part of this specification, and

represent a lamp partially in section, adapted to show my invention in detail as it may be applied to use.

, Figure 1 is a side view of a lamppartially in section.

Figure 2 is a plan of a lamp,'the chimney and burner being removed.

I will now describe its construction and operation by the aid of the drawings and the letters ,of reference marked thereon.

A- is a lamp, which may be made of any form or material. T is a tube of glass or metal passing through a hole, X, in the top of the. lamp, to which it is securely and tightly attached by means of the cement P or its equivalent. This tube is openat both ends, the inner end'N' being placed near the bottom of the lamp, and the outer end M communicating with the atmosphere. R is a reservoir formed around the tube. C is a lamp-wick to which-is attached a float, F.

'The operation will now become apparent. A portion of water, W, is first poured into the lamp, then a suflicicnt quantity of oil or fluid, 0; the wick, with the float'attached, is then placed in position, and the lamp is ready for use. When from any cause an unusual pressure arises within the lamp it will force a portion of the water W through the pipe T into the atmosphere, thus preventing an explosion, and giving a timely warning of danger; for, although the bursting of a lamp is a sudden and violent operation, yet the cause is gradually accumulative,'and in a lamp provided with my safety-tube it would be as quickly and quietly dispelled as it is created. The object of-the float F is to'prevent the wick from falling into the water, as that would injure its functions. The reservoir R is to receive the overflow from the-tube T.

I do not confine myself to the precise form of the parts here represented. I propose to make such changes as may be necessary to apply my invention to all the diii'erent styles of lamps. The tube T may be placed outside of thelamp or may be formed within its walls; its mouth M may lead into a reservoir formed in or attached to any part of the lamp, or the reservoir may be dispensed with. The float F may be either attached to the wick by thread or its equivalent, or it may be grooved-to grip it.

Having now fully described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. Relieving the internal pressure in a. lamp through the a-gency of water or its equivalent, operating substantially as described.

2. The tube T and reservoir R, or their equivalents, placed in connection with a lamp, and operating substantially in the manner and for the purposes herein set forth- 3. The float F, or its equivalent, attached to the wick, substantially and for the purpose described.

WILLIAM PORTER.

Witnesses:

E. S. GRAHAM, S. H. PLUM. 

